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Coolant Orange to Yellow Flush

blakedanatural

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Hello All,
I have a 2105 Mustang GT premium with 143k miles. I m hearing that Ford has changed the coolant from orange to yellow. Can I just drain my current orange coolant and replace with a 50 50 mix of the yellow coolant?
TY ,
Blake
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Mach1man

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Yes
 

G.T.

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Yes you can, the new yellow coolant is backwards-compatible with the old orange.

You will have pale orange coolant though.

I ran like this for a year or so till OCD kicked in and did a full flush via the reservoir return line.
 

Skye

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